- SOAPAction: "http://www.aktien.de/
- SOAPAction: "doit.exe"
- SOAPAction: ""
The presence of the SOAPAction field of the HTTP header can be used by firewalls to filter SOAP requests.
The field value of an empty String means the purpose of the request is to be determined from HTTP request URI itself (examples line 3).
No field value at all (examples line 4) means there is no hint for the purpose of the message provided.